Cita APA

Welcher,frank j. (1963). Standard Methods of Chemical Analysis (6.). Robert E. Krieger.

Chicago Edition Citation

Welcher,frank j. Standard Methods of Chemical Analysis. 6. Huntington: Robert E. Krieger, 1963.

Cita MLA

Welcher,frank j. Standard Methods of Chemical Analysis. 6. Robert E. Krieger, 1963.